Apple's new Lightning dock connector which debuted on the iPhone 5 and the new colorful iPod touch isn't just 80 percent smaller (and nearly identical in size to the micro-USB), reversible and all digital, it is also designed with USB I/O technology in mind.
According to a report from Macotakara, the Japanese blog with a fairly accurate track record, Lightning I/O has built-in support to host USB devices, which could lead to more fully-featured accessories than previously possible. Think keyboards, digital cameras, MIDI interfaces, mics and other USB-based gear...